In addition to these considerations, thus cautiously presented by CORNPLANTER, it is well known that the hostilities commenced on the north-western frontier of Virginia, by the cruel and unprovoked war waged against the Indians by the land-jobbers, under the direction of the notorious Captain MICHAEL CRESAP, had a decided effect upon the Six Nations, in determining on which side they would take in the conflict which soon followed. The atrocious murder of the family of LOGAN, by CRESAP, is well known, and need not be repeated on this occasion. LOGAN was the son of SHIKELLIMUS, a distinguished Cayuga Sachem. JAMES LOGAN, an eminent member of the Colonial Council of Pennsylvania, was the friend of SHIKELLIMUS; the Sachem had named his son for Mr. LOGAN. CONRAD WEISER, the well known Indian agent and interpreter, writing from Tulpehocken, in Berks county, under date of July 6, 1747, to Secretary PETERS, says: "SHIKELLIMUS gives his respects to his; old friend, Mr. LOGAN. He intends to see him in Philadelphia before next fall."[M] SHIKELLIMUS had been sent by the Six Nations to preside over and govern the Delawares, Shawanees, Conoys, Nantikokes, Monseys and Mohicans. This interesting fact shows the superior power and authority of the Six Nations, and that these tribes were subordinate to them. SHIKELLIMUS resided at Shamokin, a large Indian village near the junction of the North and West Branches of the Susquehanna river, the site of the present borough of Sunbury, in Northumberland county, Pennsylvania. This memorable Sachem, governed these tribes with ability and integrity, for a great many years. [M] Colonial Records of Pennsylvania. LOGAN had a temporary residence on, Kishicokelas creek, a beautiful limestone spring, a mile or two above the wild gorge where the creek passes Jack's mountain, (now in Mifflin county, Pennsylvania). Here he lived several years. This was before the year 1768, when, by the treaty of Fort Stanwix, the Indians relinquished to the proprietary government all that region of country. He then moved with his family to the country beyond the Ohio, and fixed his cabin below Wheeling, where, a few years later, his whole family were barbarously murdered. On the Sciota, in 1774, he delivered his well known speech to Lord DUNMORE, first published in Mr. JEFFERSON'S notes on Virginia. A careful historian, Mr. DAY, says: "That it is now well authenticated that LOGAN, himself, composed the speech, and that the common supposition, that Mr. JEFFERSON was the author of it, is an error."